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Author: Edward I. StiefelPublisher: Oxford University Press, USAISBN:Size: 76.21 MBFormat: PDF, ePub, MobiView: 4597Download and Read
Focuses on recent advances in the molybdenum enzymes Moco and FeMoco and their model systems. Discusses the recent crystallographic determination of the structure of the molybdenum-iron protein in the nitrogenase enzyme. Highlights the latest results on the molybdenum cofactor, Moco, including the recently determined full organic structure. Includes an overview of molybdenum in biology and the role of molybdoenzymes in the nitrogen, sulfur, and carbon cycles.

Author: Russ HillePublisher: Royal Society of ChemistryISBN: 1782628770Size: 31.30 MBFormat: PDF, KindleView: 6428Download and Read
There has been enormous progress in our understanding of molybdenum and tungsten enzymes and relevant inorganic complexes of molybdenum and tungsten over the past twenty years. This set of three books provides a timely and comprehensive overview of the field and documents the latest research. Building on the first volume that focussed on biochemistry aspects, the second volume in the set focusses on the inorganic complexes that model the structures and reactivity of the active sites of each major group of molybdenum and tungsten enzymes. Special attention is given to synthetic strategies, reaction mechanism and chemical kinetics of these systems. The introductory chapter provides a useful overview and places the topic of the book into a wider context. This text will be a valuable reference to workers both inside and outside the field, including graduate students and young investigators interested in developing new research programs in this area.

Author: Paul BergPublisher: University Science BooksISBN: 9780935702699Size: 72.25 MBFormat: PDF, MobiView: 4513Download and Read
This text is a primer on modern genetics, and shows how a detailed knowledge of the workings of genes can be applied to some of the most pressing problems of our time. It is suitable for general readers, as well as undergraduates.

Author: Astrid SigelPublisher: CRC PressISBN: 0824744446Size: 24.43 MBFormat: PDF, MobiView: 4333Download and Read
Volume 39: Molybdenum and Tungsten: Their Roles in Biological Processes is devoted soley to the vital research area on molybdenum and tungsten and their role in biology. It offers a comprehensive and timely account of this fascinating topic by 40 distinguished international authorities. Topics include: transport, homeostasis, regulation and binding of molybdate and tungstate to proteins, crystallographic characterization, coordination of complexes, and biosynthesis.

Author: Gunther WinkelmannPublisher: CRC PressISBN: 9789057022197Size: 45.57 MBFormat: PDFView: 4199Download and Read
Comprises 17 papers exploring the role of transition metals in a variety of metabolic processes, from simple interactions where the protein matrix does little more than bind an inorganic ion, to systems in which the binding site of the protein modifies the metals properties considerably, to the very complex multimetallic systems which may function as part of a supramolecular assembly. Intended as a reference for students and industry professionals, especially those working in biotechnology. Annotation copyrighted by Book News, Inc., Portland, OR

Author: Barry E. SmithPublisher: Springer Science & Business MediaISBN: 9781402025082Size: 58.72 MBFormat: PDF, KindleView: 1116Download and Read
Biological nitrogen fixation provides more than 50% of the total annual input of the essential element nitrogen to world agriculture. Thus, it is of immense agronomic importance and critical to food supplies, particularly in developing countries. This book, with chapters authored by internationally renowned experts, provides a comprehensive and detailed account of the fascinating history of the process - including the surprising discoveries of molybdenum-independent nitrogenases and superoxide-dependent nitrogenase; a review of Man's attempts to emulate the biological process - most successfully with the commercially dominant Haber-Bosch process; and the current state of the understanding art with respect to the enzymes - called nitrogenases - responsible for biological nitrogen fixation. The initial chapters use a historical approach to the biological and industrial processes, followed by an overview of assay methodologies. The next set of chapters focuses on the classical enzyme, the molybdenum nitrogenase, and details its biosynthesis, structure, composition, and mechanism of action as well as detailing both how variants of its two component proteins are constructed by recombinant DNA technology and how computational techniques are being applied. The sophisticated chemical modelling of the metal-containing clusters in the enzyme is reviewed next, followed by a description of the two molybdenum-independent nitrogenases - first, the vanadium-containing enzyme and then the iron-only nitrogenase - together with some thoughts as to why they exist! Then follows an up-to-date treatment of the clearly "non-classical" properties of the superoxide-dependent nitrogenase, which more closely resembles molybdenum-containing hydroxylases and related enzymes, like nitrate reductase, that it does the other nitrogenases. Each chapter contains an extensive list of references. This book is the self-contained first volume of a comprehensive seven-volume series. No other available work provides the up-to-date and in-depth coverage of this series and this volume. This book is intended to serve as an indispensable reference work for all scientists working in this area, including agriculture and the closely related metals-in-biology area; to assist students to enter this challenging area of research; and to provide science administrators easy access to vital relevant information.

Author: Peter CombaPublisher: Springer Science & Business MediaISBN: 9789048128884Size: 42.76 MBFormat: PDF, ePub, DocsView: 3094Download and Read
The art of chemistry is to thoroughly understand the properties of molecular compounds and materials and to be able to prepare novel compounds with p- dicted and desirable properties. The basis for progress is to fully appreciate and fundamentally understand the intimate relation between structure and function. The thermodynamic properties (stability, selectivity, redox potential), reactivities (bond breaking and formation, catalysis, electron transfer) and electronic properties (spectroscopy, magnetism) depend on the structure of a compound. Nevertheless, the discovery of novel molecular compounds and materials with exciting prop- ties is often and to a large extent based on serendipity. For compounds with novel and exciting properties, a thorough analysis of experimental data – state-of-the-art spectroscopy, magnetism, thermodynamic properties and/or detailed mechanistic information – combined with sophisticated electronic structure calculations is p- formed to interpret the results and fully understand the structure, properties and their interrelation. From these analyses, new models and theories may emerge, and this has led to the development of ef cient models for the design and interpre- tion of new materials and important new experiments. The chapters in this book therefore describe various fundamental aspects of structures, dynamics and physics of molecules and materials. The approaches, data and models discussed include new theoretical developments, computational studies and experimental work from molecular chemistry to biology and materials science.

Author: Susan MillerPublisher: Lulu.comISBN: 130078640XSize: 23.33 MBFormat: PDF, KindleView: 5157Download and Read
This book contains articles based on oral and poster presentations at the 17th International Symposium on Flavins and Flavoproteins, which was held July 24-29, 2011 at the University of California Berkeley in the USA. These triennial conferences highlight the latest advances in the field and the conference proceedings book serves both as documentation of the event and as a reference.

Author: Michael P. CoughlanPublisher: ElsevierISBN: 1483189120Size: 26.76 MBFormat: PDF, MobiView: 5974Download and Read
Molybdenum and Molybdenum-Containing Enzymes is a collection of papers that deals with the various concerns with molybdenum-containing enzymes. The text first covers the organometallic chemistry of molybdenum, and then proceeds to tackling molybdenum-containing enzymes, such as xanthine oxidase, aldehyde oxidase, and sulphite oxidase. The text also discusses the advancement in the understanding of molybdenum-containing enzymes. The remaining chapters deal with the genetics of molybdoenzymes and the nutritional aspects of molybdenum. The book will be of great use to students, researchers, and practitioners of biochemistry.

Author: Astrid SigelPublisher: Royal Society of ChemistryISBN: 1847559158Size: 39.77 MBFormat: PDF, ePub, MobiView: 2830Download and Read
Chapter 10 focuses on the interaction of CN- with enzymes containing vanadium, manganese, non-heme iron, and zinc, and the inhibiting properties of this ligand, allowing its use as a probe. The reaction mechanism of the molybdenum hydroxylase xanthine oxidoreductase is revisited in Chapter 11; previously a molybdenum-carbon bond was postulated but now proof is presented against its formation. The terminating Chapter 12 reviews briefly the most popular computational approaches employed in theoretical studies of bioorganometallic species by providing detailed examples.

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